Decking / Roofing
Boards, joists & felt by area
m
Reading 4 m
m
Reading 3 m
m
Reading 3.6 m
Adds the right top-coat or sealer to the materials list.
Results
Decking boards
42board
Surface area12 m²
Joists @ 400mm11 × 3m
Total joist timber33 linear m
Finish5L Clear wood preservative
What to buy — 6 items
145×28mm treated softwood decking board
Cut to 3.6m where possible
42 board
47×100mm treated joist (4.8m)
7 pc
5×60mm decking screw (200 box)
5 box
Joist hanger (galvanised)
22 pc
Weed control fabric
14 m²
5L Clear wood preservative
2 coats × 12 m² ÷ 30 m²/tin
1 tin
Opens at Screwfix, Toolstation and the merchants for your trade. Free account, no card.
Take the whole job with you
A free account gets you the Gaffer for the awkward questions, a checklist for the job with every part on a shopping list, and quotes and invoices you can build and price up. Sending them out is Pro. No card needed.
Create your free accountEstimates use standard UK trade rules of thumb. Always check the bag/spec on the day.